Mo. Rev. Stat. § 263.230
It shall be the duty of any person or persons, association of persons, corporations, partnerships, the state highways and transportation commission, the county commissions, the township boards, school boards, drainage boards, the governing bodies of incorporated cities, railroad companies and other transportation companies or their authorized agents and those supervising state-owned lands to control the spread of and to eradicate by methods approved by the state department of agriculture field bindweed (convolvulus arvensis) hereby designated as a noxious and dangerous weed to agriculture.
(L. 1941 p. 302 § 14264)